Local changes / Save to file should offer to save the file

When debugging syncing issues, it often helps to just “Remove the first local queue item”. But this means it gets forgotten forever. To avoid this, it is possible to save tho Local changes queue to file first. However, in recent Android version, it seems to save the file within the private storage area of the app, which is therefore hard to get to.

Instead, this option should offer to save the file via and Android intent, so the user knows where the file is, and can reach it.

Start by locating the “Local changes / Save to file” action and inspect how it currently writes into app-private storage. Read the Android intent entry points used for choosing a destination, then verify that saving opens a destination chooser and the exported queue file can be found outside private app storage.

Written by the indexing model from the issue text.